Getting Started

Steps

1. Open the starter project from the github repo in Android Studio

2. Add the navigation libraries to the app build.gradle file

3. Add the safe-arg plugin to the main and app build.gradle file

4. Set DataBindingUtil in build.gradle

5. Use DataBindingUtil to inflate every layout

6. Create a new navigation xml file

7. Create a new Login destination.

   • Include email and password labels
   • Include email and password fields
   • Create buttons for creating a new login and logging in with an existing account
   • Clicking either button should navigate to the Welcome Screen.

8. Create a new Welcome screen destination that includes:

• A new layout
• At least 2 textviews and use any text you would like
• A navigation button with actions to navigate to the instructions screen

1. Create a new Instruction destination that includes:

   • A new layout
   • At least 2 textviews with appropriate information
   • A navigation button with actions to navigate to the shoe list screen

2. Create a class that extends ViewModel

   • Use a LiveData field that returns the list of shoes

3. Create a new Shoe List destination that includes:

   • A new layout
   • A ScrollView
   • A LinearLayout inside the ScrollView for Shoe Items
   • A FloatingActionButton with an action to navigate to the shoe detail screen

4. In MainActivity, setup the nav controller with the toolbar and an AppBarConfiguration

5. In MainActivity, add a Logout menu to return to the login screen

6. Create a new Shoe Detail destination that includes:

   • A new layout
   • A TextView label and EditView for the
     Shoe Name,
     Company,
     Shoe Size and
     Description

• A Cancel button with an action to navigate back to the shoe list screen
• A Save button with an action to navigate back to the shoe list screen and add a new Shoe to the Shoe View Model.

Hint: In the Shoe List destination, to add a child view programmatically to a ViewGroup, such as LinearLayout, use the addView() method. Refer to a sample implementation in the StackOverflow discussion here.

15. Make sure you can’t go back to onboarding screens In the Shoe List screen:
    • use an Activity level ViewModel to hold a list of Shoes (use by activityViewModels)
    • Observe the shoes variable from the ViewModel
    • Add a new layout item into the scrollview for each shoe.